from __future__ import division, print_function
 import json
 
 with file('TNET.json') as f:
     data = json.load(f, 'utf-8')
 
 commentors = {}
 
 for x in data:
     commentors.setdefault(x['name'].encode('utf-8'), []).append(x['likes'])
 
 for x in commentors:
     dat = commentors[x]
     print(len(dat), sum(x+1 for x in dat), sum(x+1 for x in dat)/len(dat), x, sep=':')